Guide for condensate polishing power plant see other formats k t disclosure to promote the right to information whereas the parliament of india has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the. Using this knowledge base, a range of standardized mixedbed units for condensate polishing has been created. We offer stateoftheart, comprehensive solutions for condensate polishing unit for sugar, distilleries, captive and cogen power plant ad process industries. Condensate from distillery unit is having characteristics bod ranging from 2200 to 2500 mgl, cod ranging from 4000 to 4500 mgl, colour less, acidic in nature. A mottbased system can also significantly improve the operating. Improvements in regeneration, resin separations, resin residuals. These units are usually designed for a high specific flow rates. A condensate polisher is a device used to filter water condensed from steam as part of the steam cycle, for example in a conventional or nuclear power plant powdered resin or deep bed system. During the process, the condensate picks up contaminant like iron, copper, oil, silica etc. Standardized units reduce time to market, optimize cost, facilitate maintenance and represent proven solutions. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Aqua designs offers condensate polishing unit having collaboration with italian technology provider who has more than 15 installations in europe. Service turbine plant chemical addition system removed from service. Condensate polishing units based on anaerobic and aerobic treatment for reuse in processes.
The ultimate goal of condensate polishing is to remove all soluble impurites and protect the high. Each unit treats a condensate flow of 35,568 m3day. Dow liquid separations dowex ion exchange resin guide to. Condensate polishing unit detail paramount limited. Box 1608, 1414 east linden avenue, linden, nj 07036, usa received december 1996. Jan 25, 2018 condensate polishing a sound industrial water treatment strategy. The rationale of condensate treatment uninterrupted flow of impurity. Recovered condensate shall be then routed and treated in the condensate polishing unit.
Bhel condensate polishing unit cpu condensate polishing unit for yadadri project, due date. The conesep technology isolates and transfers ion exchange resins from the condensate polishing unit to external vessels. Condensate polishing with separix external regeneration water technologies why polish condensate. Jan 01, 2017 looking for condensate polishing unit. Dow liquid separations dowex ion exchange resin guide to condensate polishing. The process is reversed when the resin is fully regenerated, transferring it back into the service unit. The use condensate polishers have the bellow benefits. Deploying a condensate polishing system is a wise water treatment strategy that can yield substantial economic payback in terms of improved boiler equipment life and operation, and. It also has limited application in japanese fossil units.
Powdered resin for condensate polishing sciencedirect. Condensate polishing is a specialized process and ovivo has been. Better industrial water treatment with condensate polishing. Condensate polishing unit for alkhalij power plant, libya was executed in the year 2011. Condensate polisher savings of 23% realized through value. The benefits of condensate polishing are related to the improvement in the steam cycle, and water chemistry that it provides. There are many condensate polishing, mixed bed regeneration systems. Using mott porous metal, condensate polishing can achieve two primary objectives. Commonly used as part of a power plants condensate system, it prevents premature chemical failure and deposition within the power cycle which would have resulted in loss of unit efficiency and possible mechanical. Anion ion exchange resin used in condensate polishing is typically limited to a. Condensate polishing for the power industry purolite.
Multiutilities facility separate bed technology boustead salcon designed and supplied two condensate polishing units for a 2 x 800 mw ultra critical coalfired power plant located in kaohsiung, taiwan. A highly important safety net for more efficient plants process eliminates the need for costly sensors or specialty chemicals to identify and separate the resin types. Condensate polishing experts part of berkshire hathaway companys marmon water group, graver pioneered highperformance condensate polishing and water treatment for power generators around the globe. Condensate polisher gea engineering for a better world. The patented conesep system has been supplied as part of the condensate polishing plants cpp to power plants worldwide, and ovivo is proud to continue this heritage. A mixedbed polisher unit will be required if the product water specification is below that achievable from the demineralization plant alone or if a higher degree of safety is required to ensure water quality. This is the most economical and efficient system yet devised to provide both filtration and ion exchange capabilities. Condensate water polishing system free ebook download as powerpoint presentation. Condensate polishing is a proven method of producing high purity demineralized water from recovered boiler condensate. Condensate polishing treatment process boustead salcon. In large power stations, the flow rate through each condensate polishing unit is often 200 to 800 m 3 h. System flow diagram for condensate polishing systems click image to download fullsize diagram the solution. Steam condensate polishing condensate polishing is a proven method of producing high purity, which can be economically returned to an ultrapure state by simple polishing rather than using fresh make up process water.
Download dow guide condensate polishing free in pdf format. This fertilizer plant is located in nigeria, africa. In large power stations, the flow rate through each condensate polishing unit is often 600 to m 3 h. Condensate polishing for nuclear and super critical power. The risk of persistent contamination of return condensate also calls for the application of a cpu, thus minimizing additional consumption of makeup water. It can also be applied to condensed steam from any steam system being returned to the boiler. When the operating pressure is not too high, cylindrical vessels are used, but at 4 mpa 40 bar or above, spherical vessels are necessary to. Condensate polishing technologies for combined cycle. Easy, effective upgrade opportunities with mott porous metal. Operation of powdered resin units at high temperature authored by. These systems are used to maintain a high quality of water by removing impurities from condensate return streams. The condensate polisher was required to treat a design flow rate of 75 gpm.
Condensate polishing plant running either in hydrogen cycle or combination of hydrogen and ammonia cycle, comprising of at least two2 deep mixed bed type service vessels operating in parallel and in conjunction with the main tg unit with associated electrical, instrumentation, valves, pumping, piping to achieve condensate water quality of. The condensate polishing units with a common external regeneration system and associated accessories shall conform to the technical specification pets412155aa001 for condensate polishing unit of 2x 660 mw ennore sez stpp. The unit removes impurities such as corrosive materials, dissolved salts, etc. These keywords were added by machine and not by the authors. Condensate polishing is a specialized process and ovivo has been designing and. The plant arrangement ensures there is no chance of any regenerant accidentally. This high quality water can then be reused as boiler feed water, process, cooling, and rinsing water or be discharged directly into a drainage ditch. Condensate polishing unit free ebook download as pdf file. Successful condensate polishing maintains control of ionic and particulate impurity transport in the fossil plant and allows the unit to operate more reliably. A sample of supernatant is collected for measurement of the turbidity in nephelometric turbidity units ntu, and this value is called the clarity. Condensate water polishing system boiler filtration. Oct 28, 2011 condensate polishing system shipped to university in massachusetts a triple all stainless steel condensate polisher was shipped to a university in cambridge, massachusetts. Condensate polishing packages sewage treatment reverse.
Feb 10, 2017 condensate polishing unit and its uses in power plant. It is frequently filled with polymer resins which are used to remove or exchange ions such that the purity of the condensate is maintained at or near that of distilled water. Where polishing and filtration are required due to suspended solids in the condensate, powdex may be the solution. A condensate polisher can be used on these units to reduce the level of contaminants in the steamwater cycle and ensure that chemistry limits do not play a major role in delaying unit startup times. Condensate polishing technologies for combined cycle power. Specifications developed prior to bidding called for a 30 diameter vessel containing 15 ft3 of condensate polishing condensate polisher savings of 23% realized through value engineering reskem corp po box 1059 media, pa 19063 8003231983 6103580717 6103584642 fax.
Description download dow guide condensate polishing free in pdf format. Condensate from evaporation plants can be purified in a condensate polisher to convert a waste stream into a water stream, using reverse osmosis. Doc condensate polishing training manual eli salem. The system is designed to treat 445 gpm of condensate and is replacing an existing unit which had reached the end of its life. Our expertise and trackrecord in the power sector and our proprietary condensate polishing technologies are amongst the best in the world. Condensate polisher system technology condensate polishing differs from regular ion exchange in that ion exchange is only part of the overall process as the condensate is already of high quality and only requires polishing. Condensate polishing unit and its uses in power plant. Condensate polishers add operating reliability and flexibility.
The powdex condensate polishing system consists of a vessel containing precoatable filter septa. The condensate polishing units are also used in refineries and petrochemicals, fertilizer to polish the process condensate and surface condensate for reuse. A condensate polisher is a device used to filter water condensed from steam as part of the. Polishing units are essential just because the condensate constitutes the major portion of the boiler feedwater. These units are usually designed for a high specific flow rate 80 to 120 bed volumes per hour. Recovered condensate shall be then routed and treated in the condensate polishing unit cpu. Condensate cleanup system removed from service full flow condensate polishing demineralizer ffcd removed from service. Frequently asked questions faq on condensate polishing. Condensate polishing typically involves ion exchange technology for the removal of trace dissolved minerals and suspended matter. Presentation of condensate treatment via pietro nenni, 15 27058 voghera italy. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. We can help you determine if powdex is a suitable solution for your. Condensate polishing systems must produce high purity effluent satisfying the following requirements.
Though cpu is an ion exchange based mixed bed system operating at elevated temperature, external regeneration is a must to avoid cross contamination to achieve stringent outlet condensate quality. Condensate polishing unit distillery process condensate. Pdf dow guide condensate polishing free download pdf. Condensate polishing custom water treatment systems. Graver condensate polishing brochure click pdf icon to download graver condensate polishing 0312019. Condensate polishing for nuclear and super critical power plants. The condensate polisher use will result in following benefits.
Whereas condensate from sugar industry is having characteristics, bod from 100150 mgl, cod 250 to 320 mgl, colour less and ph around 6. Wigen is a recognized leader in the design and fabrication of condensate polishing systems for industrial, power and steam utility applications. Condensate polishing is the way to solve eventual problems and. Mixed bed polisher mbp and condensate polisher cpp. Powdex precoat filter demineralizer graver water systems.
Condensate polishing is the unsung hero of efficient plant operations, as it can remove impurities, prevent leaks, and avert shutdowns. Why do combined cycle gas turbine ccgt units need condensate filters or polishers. The seller shall not be liable to the buyer, or to any other person, for the loss or damage, directly or indirectly, arising. Years of experience operating in over 80 installations have demonstrated that the unique design of the. Design, engineering, manufacture, inspection and testing. Presented at the iwc 2002 i introduction deep bed condensate polishers are nominally limited to a temperature of 120 deg f because above that, the anion resins begin to degrade. Condensate polishing unit cpu condensate polishing tender. An introduction to condensate polishing condensate polishinga preventative approach 3 the role of ion exchange in condensate polishing 3 the purpose of this guide 4 the type of condensate polishing operation depends on the operating parameters boiler pressure 4 condensate polishing systems currently used or proposed for operation.
Some of the benefits are long term while others are of immediate nature. Boiler pressure is the key factor for determining the requirement of a cpu system see figure ii3. Condensate polishing units are typically used in fossil power plants to improve condensate return for boiler feed. Filter elements are precoated with ion exchange resin to provide the dual function of ion exchange and filtration a unique solution in condensate polishing. This report will assist utilities in reducing the overall cost of condensate polishing by the use of offsite regeneration of the resins. Deploying a condensate polishing system is a wise water treatment strategy that can yield substantial economic payback in terms of improved boiler equipment life and operation, and controlled water, power, and chemical costs. Condensate polishing normally applies to the treatment of condensed steam from turbines operating in the power industry.
Resin separation is key to condensate polishing system performance. We offer the worlds most complete, durable, highperformance solutions for combined cycle cp and filtration needs. Condensate polishing is an important part of water treatment for any utility or industrial power generating system. This project profile illustrates the process for cpu and external regeneration system. As a team effort, boustead salcon and boustead projects delivered a 2 x 6,000 m3day condensate polishing system for the 60 mw biomassclean coal plant located at tembusu, jurong island. For the steam generator plant with low steam pressure below 40 kgcm 2, the requirement of a condensate polishing unit is usually avoided. When the operating pressure is not too high, cylindrical. Polishing condensate reduces the risk of damage to the boiler and the turbine caused by the concentration of soluble impurities that corrode internals which contribute to insoluble impurities such as copper, iron and silica in the recirculating.
Condensate polishing unit reliability engineering boiler scribd. Although early bwr deep bed plants included regeneration systems, none are operable today and only a few were ever operated. Powdex systems have been designed with condensate flow capacities up to 33,000 gpm 7,500 m3hr for a single installation. A precoat of powdered ion exchange resin and other materials is placed on the septa and. From oil and particulate removal within industrial applications to high pressure, pure water systems for nuclear power generation, ovivo has a range of solutions to suit any condensate polishing application.
In view of the low salinity of the water to be treated, mixed bed polishers are used in over 90 % of the cases. Condensate polishing a sound industrial water treatment strategy. High rate mixed beds use bead type ion exchange resins to polish condensate. Condensate polishing unit manufacturer cpu naranlala. Some plants used ultrasonic resin cleaners to remove the particulate iron oxides and then return the resins.
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